El Pais said on its website that the video was recorded by cameras belonging to Spain’s airport authority.
Spanish authorities acknowledged the existence of the video shortly after the accident, but it had never before been made public.

The causes of the crash is not yet officially announced. Leaked extracts of the official report say the plane’s wing flaps were not properly extended when it attempted to take off, causing it to lose altitude and crash. The pilots were not aware of the problem until it was too late because a warning alarm failed to work.